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J. A. HAMANN.

Watch Key= Patnted Apri! 2, 1867.

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IMPROVEMENT IN WATGH-PENDENT KEYS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, J. A. lIAMANN, of the city, county, and State of NewYork, have invented a new and useful Improvement in Watches, and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawings,forming part of this specification.

The present invention consists in so constructing the pendant of a watchas to receive and hold the key alapted to such watch, whereby the key isalways at hand when to be used for winding the watch-movement or settingor adjusting its hands; and, furthermore, the socket of the key cannotbecome clogged or stopped up with dirt, &c., this invention being animprovement upon one described in another application for Letters Patentmade by me, and now on file in the United States Patent Oifice.

In the accompanying plate of drawings my improvement in watches isillustrated- Figure 1 being a section of a pendant of a watclrcase,taken in a plane corresponding with the ring or circular shape of thecase; and

Figure 2 a transverse section of the pendant and a portion of thewatch-case.

A, in the drawings, represents the pendant of a watch-case, B. Thispendant, in the direction and for the whole of its length, is bored outof a diametercorresponding to the external diameter of the spindle ofthe key which it is to receive or hold, where, by means of aspring-catch, (1, secured in one side of the pendant-bore, it is held.This spring-catch locks into a notch, 19, of the head or cross-piece cof the watch-key, which is elongated in the proper direction to allow ofan inward play of the watch-key suificient to produce the disengagementof the catch-spring 1), from the cover-plate to the dial-Face andcrystal of the watch; the key acting upon such spring through ashouldered pin or stud, E, secured thereto, and extending up partiallythrough the bore of the watch-pendant, as plainly shown in both figuresof the drawings. With a pendant adapted to the reception of a watch-key,and provided with a spring-catch to hold or fasten it therein. as hasbeen hereinabove described, many important advantages are secured, amongwhich may be here mentioned that the key is always at hand, and thesocket or bore of its spindle cannot become clogged or stopped up withdirt, which is unavoidable if the key is carried in the pocket, thus notonly preventing niuch annoyance, but also much injury to the watchmovement.

Having thus described my invention, I claim as en, and desire to secureby Letters Patent- 1. The pendant A, having secured to it thespring-catch ('1, in combination with the key G, and shouldered pin F,constructed and operating as described for the purpose specified.

2. The. key C, with elongated notch b, in combination with thespring-catch a, secured within the pendant A substantially as described,for the purpose specified.

The above specification of my invention signed by me this Tth day ofNovember, 1866.

J. A. HAMANN.

Witnesses:

WM. F. McNAMAnA, ALBERT W. BROWN.

